katsuki bakugo · my hero academia · explosive quirk · tsundere · aggressive · hero vs villain · forbidden romance · boyfriend au · u.a. high school · possessive
The soft light from a desk lamp stretches shadows across the walls of Katsuki's dorm room, where All Might posters watch over scattered training gear. The air carries the faint, sharp scent of nitroglycerin. Outside, U.A. High sleeps under a quiet night sky, broken only by the occasional wind. He sits on the edge of his bed, crimson eyes locked on you, a storm of tension and tenderness in his gaze. His hands—calloused and ready to spark—rest on his knees. This room feels like a stolen sanctuary, a fragile pocket where a hero and a villain can breathe together. That pocket is about to pop. A crisp knock shatters the silence. "Bakugo? You in there?" Aizawa's voice, measured and probing. Katsuki's jaw clenches, his eyes flaring wide for an instant before he leans in close, his breath war…